As filed with the Securities and Exchange Commission on September 29, 2003
                                                 Registration No. 333-__________
================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                               ------------------

                                    FORM S-3
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                               ------------------

                                   3M COMPANY
             (Exact name of Registrant as specified in its charter)
                 Delaware                               41-0417775
      (State or other jurisdiction of                (I.R.S. Employer
      incorporation or organization)                Identification No.)
                                    3M Center
                            St. Paul, Minnesota 55144
                                 (651) 733-1110
         (Address, including zip code, and telephone number, including
            area code, of Registrant's principal executive offices)

                               ------------------

                           Gregg M. Larson, Secretary
                                   3M Company
                                    3M Center
                            St. Paul, Minnesota 55144
                                 (651) 733-1110
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)

                               ------------------

         Approximate date of commencement of proposed sale to the public: From
time to time after the effective date of this Registration Statement, as
determined in light of market conditions and other factors.

         If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box.                                                                    [_]

         If any of the securities being registered on this Form are to be
offered on a delayed or continuous basis pursuant to Rule 415 under the
Securities Act of 1933, other than securities offered only in connection with
dividend or interest reinvestment plans, check the following box.       [X]

         If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [_] _______________

         If this form is a post-effective amendment filed pursuant to Rule
462(c) under the Securities Act, check the following box and list the Securities
Act registration statement number of the earlier effective registration
statement for the same offering. [_] ________________

         If delivery of the prospectus is expected to be made pursuant to Rule
434, please check the following box.                                    [_]

                               ------------------

                         CALCULATION OF REGISTRATION FEE


=========================================================================================================================
       Title of Each Class              Amount               Proposed             Proposed                  Amount of
          of Securities                 To be                Maximum               Maximum                 Registration
        to be Registered              Registered          Offering Price          Aggregate                   Fee(3)
                                                           Per Unit (1)       Offering Price (1)
-------------------------------------------------------------------------------------------------------------------------
                                                                                                
       Debt Securities            $1,500,000,000(2)            100%            $1,500,000,000               $121,350
=========================================================================================================================

(1)      Estimated solely for the purposes of calculating the registration fee
         pursuant to Rule 457(o) under the Securities Act.
(2)      In the case of debt securities issued at an original issue discount,
         such greater principal amount as shall result in an aggregate offering
         price of the amount set forth above or, in the case of debt securities
         denominated in a currency other than U.S. dollars or in a composite
         currency, such U.S. dollar amount as shall result from converting the
         aggregate public offering price of such debt securities into U.S.
         dollars.
(3)      Pursuant to Rule 457(p) under the Securities Act, the amount of the
         registration fee payable hereunder has been entirely offset by $130,416
         of filing fees paid in respect of $494,000,000 of unsold securities
         previously registered under the Registration Statement on Form S-3 (No.
         333-48922) of 3M Company filed with the Securities and Exchange
         Commission on October 30, 2000. The amount of the filing fee for
         securities to be registered hereunder pursuant to such offset has been
         recalculated based upon the current fee rate of $80.90 per million.
         Therefore, no filing fee relating to securities being registered
         hereunder is being paid herewith.



         THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE
OR DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.

================================================================================

                 SUBJECT TO COMPLETION, DATED SEPTEMBER 29, 2003

[3M LOGO]

3M Company
3M Center
St. Paul, Minnesota 55144
(651) 733-1110


                                 $1,500,000,000
                                   3M COMPANY
                                 Debt Securities

                                   ----------

         We may from time to time issue up to $1,500,000,000 aggregate principal
amount of debt securities in supplements to this prospectus. We will provide
specific terms of the debt securities in supplements to this prospectus. These
specific terms will include the offering price and other information about the
debt securities. You should read this prospectus and the applicable supplement
carefully before you invest.

         When we issue the debt securities offered by this prospectus, they will
be new securities without an established trading market. We may sell these
securities to or through underwriters, and also to other purchasers or through
agents. The names of the underwriters or agents, as the case may be, will be set
forth in the applicable prospectus supplement.


                                   ----------

         NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

                                   ----------


                    This prospectus is dated ______ __, 2003.


THE INFORMATION IN THIS PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED. WE MAY
NOT SELL THESE SECURITIES UNTIL THE REGISTRATION STATEMENT FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PROSPECTUS IS NOT AN OFFER
TO SELL THESE SECURITIES AND IT IS NOT SOLICITING AN OFFER TO BUY THESE
SECURITIES IN ANY STATE WHERE THE OFFER OR SALE IS NOT PERMITTED.



                                       2



                              ABOUT THIS PROSPECTUS

         This prospectus is part of a registration statement (No. 333-_______)
that we filed with the Securities and Exchange Commission using a "shelf"
registration process. Under this process, we may sell in one or more offerings
up to $1,500,000,000, or the equivalent in foreign or composite currencies, of
debt securities. This prospectus provides you with a general description of the
terms and conditions of the debt securities that we may offer. Each time we
offer debt securities, we will provide a prospectus supplement that will contain
specific information about the terms of that offering. The applicable prospectus
supplement may also add, update or change information contained in this
prospectus.

         To understand the terms of our debt securities, you should carefully
read this document with the applicable prospectus supplement that together give
the specific terms of the debt securities that we may offer. You should also
read the documents we have referred you to in "Where You Can Find Additional
Information" below for information on our company and our financial statements.

         The registration statement that contains this prospectus, including the
exhibits to the registration statement, provides additional information about us
and the debt securities offered under this prospectus. The registration
statement can be read at the Securities and Exchange Commission, or the SEC, web
site or at the SEC offices mentioned under the heading "Where You Can Find
Additional Information".

                    WHERE YOU CAN FIND ADDITIONAL INFORMATION

         We file annual, quarterly and current reports, proxy statements and
other information with the SEC. Our SEC filings are available to the public over
the Internet at the SEC's web site at http://www.sec.gov. You may also read and
copy any document we file with the SEC at its public reference room located at
450 Fifth Street, N.W., Washington, D.C. 20549. Please call the SEC at
1-800-SEC-0330 for further information on the operation of the public reference
facilities. Our SEC filings are also available at the office of the New York
Stock Exchange. For further information on obtaining copies of our public
filings at the New York Stock Exchange, you should call (212) 656-5060.

         We "incorporate by reference" into this prospectus the information we
file with the SEC, which means we can disclose important information to you by
referring you to those documents filed separately with the SEC. The information
incorporated by reference is an important part of this prospectus. Some
information contained in this prospectus updates the information incorporated by
reference, and information that we file subsequently with the SEC will
automatically update this prospectus. In other words, in the case of a conflict
or inconsistency between information set forth in this prospectus and
information incorporated by reference into this prospectus, you should rely on
the information contained in the most recently filed document. We incorporate
by reference the documents listed below that we filed with the SEC (File No.
1-3285) and any filings we make with the SEC under Sections 13(a), 13(c),


                                       3


14 or 15(d) of the Securities Exchange Act of 1934 (other than Current Reports
furnished under Item 9 of Form 8-K) after the initial filing of the registration
statement, or after the date of this registration statement to the date of
effectiveness of this registration statement, that contains this prospectus and
before the time that we sell all the debt securities offered by this prospectus:

         o        our Annual Report on Form 10-K for the year ended December 31,
                  2002,

         o        our Quarterly Reports on Form 10-Q for the quarters ended
                  March 31, 2003 and June 30, 2003; and

         o        our Current Reports on Form 8-K dated March 4, 2003, March 26,
                  2003, May 23, 2003, August 13, 2003, and August 21, 2003.

         You may request a copy of these filings, other than an exhibit to a
filing unless that exhibit is specifically incorporated by reference into that
filing, at no cost, by writing to or telephoning us at the following address:

                        3M Company
                        3M Center
                        St. Paul, MN  55144
                        Phone: (651) 733-1110
                        Attention: Investor Relations

         You should rely only on the information incorporated by reference or
presented in this prospectus or the applicable prospectus supplement. Neither
we, nor any underwriters or agents, have authorized anyone else to provide you
with different information. We may only use this prospectus to sell debt
securities if it is accompanied by a prospectus supplement. We are only offering
these debt securities in states where the offer is permitted. You should not
assume that the information in this prospectus or the applicable prospectus
supplement is accurate as of any date other than the dates of those documents.

                                   THE COMPANY

         3M was incorporated in 1929 under the laws of the State of Delaware to
continue operations, begun in 1902, of a Minnesota corporation originally named
Minnesota Mining and Manufacturing Company. On April 8, 2002, the company's name
was changed to 3M Company. 3M's principal executive offices are located at 3M
Center, St. Paul, Minnesota 55144 (telephone: 651-733-1110).

         3M is a diversified global company with a market presence in health
care, safety, electronics, telecommunications, industrial, consumer and office,
and other markets. 3M is an integrated enterprise characterized by substantial
intercompany cooperation in research, manufacturing and marketing of products.
3M's business has developed from its research and technology in coating and
bonding for coated abrasives, the company's original product. Coating and
bonding is the process of applying one material to another, such as abrasive
granules to paper or cloth (coated abrasives), adhesives to a backing
(pressure-sensitive tapes), ceramic coating to granular mineral (roofing
granules), glass beads to plastic backing (reflective sheeting), and low-tack
adhesives to paper (repositionable notes).



                                       4


         3M is among the leading manufacturers of products for many of the
markets it serves. In all cases, 3M products are subject to direct or indirect
competition. Most 3M products involve expertise in product development,
manufacturing and marketing, and are subject to competition from products
manufactured and sold by other technically oriented companies.

         Our strategic business units have been aggregated into seven reportable
segments: Industrial Business, Health Care Business, Transportation Business,
Display and Graphics Business, Safety, Security and Protection Services
Business, Consumer and Office Business, and Electro and Communications Business.
These segments bring together common or related 3M technologies, enhancing the
development of innovative products and services and providing for efficient
sharing of business resources. These segments have worldwide responsibility for
virtually all 3M product lines. A few miscellaneous businesses and
staff-sponsored products, as well as various corporate assets and corporate
overhead expenses, are not assigned to the segments.

         When we refer to "3M", "our company", "we", "our", and "us" in this
prospectus under the headings "The Company" and "Ratio of Earnings to Fixed
Charges", we mean 3M Company and its consolidated subsidiaries unless the
context indicates otherwise. When these terms are used elsewhere in this
prospectus, we refer only to 3M Company unless the context indicates otherwise.




                                       5


                       RATIO OF EARNINGS TO FIXED CHARGES

         The following table sets forth the ratio of earnings to fixed charges
for the periods indicated:



                                                                                            SIX MONTHS
                                      YEAR ENDED DECEMBER 31,                             ENDED JUNE 30,
         --------------------------------------------------------------------------    -------------------
                1998            1999          2000            2001          2002               2003
         --------------------------------------------------------------------------    -------------------
                                                                              
               10.3x(1)       15.8x(2)       15.8x(3)       11.5x(4)       20.2x(4)          22.3x(5)


         ----------

         (1)      The ratio for the year ended December 31, 1998 includes
                  pre-tax restructuring charges of $493 million.

         (2)      The ratio for the year ended December 31, 1999 includes a net
                  pre-tax gain of $100 million relating to special items that
                  include gains on divestitures, litigation expense, an
                  investment valuation adjustment, and a change in estimate that
                  reduced the 1998 restructuring charges.

         (3)      The ratio for the year ended December 31, 2000 includes net
                  pre-tax losses of $23 million relating to special items.

         (4)      The ratio for the year 2002 and year 2001 includes net pre-tax
                  losses of $202 million and $504 million related to special
                  items, respectively, primarily related to the 2001
                  restructuring plan.

         (5)      The ratio for the six months ended June 30, 2003 includes $93
                  million pre-tax loss related to the adverse ruling associated
                  with a lawsuit filed by LePage's Inc.

o        For purposes of calculating the ratio, fixed charges consist of:

         o        gross interest, including the interest component of ESOP
                  benefit expense;

         o        amortization of debt expense and discount or premium relating
                  to any indebtedness; and

         o        the portion of rental expense on operating leases considered
                  to be representative of the interest factor therein.

o        The ratio of earnings to fixed charges is calculated as follows:


                                                                                    
   (income from continuing operations             (fixed          (amortization of           (capitalized
 before income taxes and minority interest)   +   charges)   +   capitalized interest)   -     interest)
---------------------------------------------------------------------------------------------------------
                                             (fixed charges)





                                       6


                                 USE OF PROCEEDS

         Unless otherwise specified in the applicable prospectus supplement, the
net proceeds we receive from the sale of the debt securities offered by this
prospectus and any accompanying prospectus supplement will be used for general
corporate purposes, including:

         o        the repayment of debt;

         o        investments in or extensions of credit to our subsidiaries; or

         o        the financing of possible acquisitions or business expansion.

Until the net proceeds have been used, they may be invested temporarily in
short-term marketable securities.

                         DESCRIPTION OF DEBT SECURITIES

         This section describes the general terms and provisions of the debt
securities. The applicable prospectus supplement will describe the specific
terms of the debt securities offered through that prospectus supplement and any
general terms outlined in this section that will not apply to those debt
securities. The debt securities will be issued under an indenture, dated as of
November 17, 2000, between us and Citibank, N.A., as trustee. As used in this
prospectus, "debt securities" means the debentures, notes, bonds and other
evidence of indebtedness that we issue and the trustee authenticates and
delivers under the indenture.

         We have summarized the general terms and provisions of the indenture in
this section. This summary, however, does not describe every aspect of the
indenture. We have filed the indenture as an exhibit to the registration
statement. You should read the indenture for additional information before you
buy any debt securities. The summary that follows includes references to section
numbers of the indenture so that you can more easily locate these provisions.

GENERAL

         The debt securities will be our direct, senior, unsecured obligations.
The indenture does not limit the amount of debt securities that we may issue and
permits us to issue debt securities from time to time. Debt securities issued
under the indenture will be issued as part of a series that has been established
by us under the indenture. (Section 301) Unless a prospectus supplement relating
to debt securities states otherwise, the indenture and the terms of the debt
securities will not contain any covenants designed to afford Holders (as defined
below) of any debt securities protection in a highly leveraged or other
transaction involving us that may adversely affect Holders of the debt
securities. If we ever issue bearer securities we will summarize provisions of
the indenture that relate to bearer securities in the applicable prospectus
supplement.



                                       7


         A prospectus supplement relating to a series of debt securities being
offered will include specific terms relating to the offering. (Section 301)
These terms will include some or all of the following:

         o        the title and type of the debt securities;

         o        any limit on the total principal amount of the debt
                  securities;

         o        the price at which the debt securities will be issued;

         o        the maturity date of the debt securities;

         o        the date or dates on which the principal of and premium, if
                  any, on the debt securities will be payable;

         o        if the debt securities will bear interest:

                  o        the interest rate on the debt securities;
                  o        the date from which interest will accrue;
                  o        the record and interest payment dates for the debt
                           securities;
                  o        the first interest payment date; and
                  o        any circumstances under which we may defer interest
                           payments;

         o        any optional redemption provisions that would permit us or the
                  Holders of debt securities to elect redemption of the debt
                  securities before their final maturity;

         o        any sinking fund provisions that would obligate us to redeem
                  the debt securities before their final maturity;

         o        the currency or currencies in which the debt securities will
                  be denominated and payable, if other than U.S. dollars;

         o        any provisions that would permit us or the Holders of the debt
                  securities to elect the currency or currencies in which the
                  debt securities are paid;

         o        whether the provisions described under the heading
                  "Defeasance" below apply to the debt securities;

         o        any changes to or additional events of default or covenants;

         o        whether the debt securities will be issued in whole or in part
                  in the form of temporary or permanent global securities and,
                  if so, the depositary for those global



                                       8


                  securities (a "global security" means a debt security that we
                  issue in accordance with the indenture to represent all or
                  part of a series of debt securities);

         o        any special tax implications of the debt securities; and

         o        any other terms of the debt securities.

A "Holder," with respect to a registered security, means the person in whose
name the debt security is registered in the security register. (Section 101)

PAYMENT; EXCHANGE; TRANSFER

         We will designate a place of payment where you can receive payment of
the principal of and any premium and interest on the debt securities or transfer
the debt securities. Even though we will designate a place of payment, we may
elect to pay any interest on the debt securities by mailing a check to the
person listed as the owner of the debt securities in the security register or by
wire transfer to an account designated by that person in writing not less than
ten days before the date of the interest payment. (Sections 305, 307, 1002)
There will be no service charge for any registration of transfer or exchange of
the debt securities, but we may require you to pay any tax or other governmental
charge payable in connection with a transfer or exchange of the debt securities.
(Section 305)

DENOMINATIONS

         Unless the prospectus supplement states otherwise, the debt securities
will be issued only in registered form, without coupons, in denominations of
$1,000 each or multiples of $1,000.

ORIGINAL ISSUE DISCOUNT

         Debt securities may be issued under the indenture as original issue
discount securities and sold at a substantial discount below their stated
principal amount. If a debt security is an "original issue discount security,"
that means that an amount less than the principal amount of the debt security
will be due and payable upon a declaration of acceleration of the maturity of
the debt security under the indenture. (Section 101) The applicable prospectus
supplement will describe the federal income tax consequences and other special
factors which should be considered before purchasing any original issue discount
securities.

CLASSIFICATION OF RESTRICTED AND UNRESTRICTED SUBSIDIARIES

         The indenture contains several restrictive covenants that apply to us
and all of our Restricted Subsidiaries. Those covenants do not apply to our
Unrestricted Subsidiaries. For example, the assets and indebtedness of
Unrestricted Subsidiaries and investments by us or our Restricted Subsidiaries
in Unrestricted Subsidiaries are not included in the calculations


                                       9


described under the heading "-Restrictions on Secured Funded Debt" below. The
indenture does not require us to maintain any Restricted Subsidiaries and, if we
do not, the indenture will not provide any limitations on the amount of secured
debt created or incurred by our Subsidiaries.

         A "Subsidiary" is any corporation of which we own more than 50% of the
outstanding shares of Voting Stock, except for directors' qualifying shares,
directly or through one or more of our other Subsidiaries. "Voting Stock" means
stock that is entitled in the ordinary course (I.E., not only as a result of the
happening of a contingency) to vote in an election for directors.

         A "Restricted Subsidiary" means any of our Subsidiaries which has
substantially all of its property in the United States, which owns or is a
lessee of any Principal Property and in which our investment and the investment
of our Subsidiaries exceeds 1% of our Consolidated Net Tangible Assets as of the
date of the determination, other than Unrestricted Subsidiaries. Additionally,
this definition includes any other Subsidiary designated by our board of
directors as a Restricted Subsidiary. (Section 101). A "Wholly-owned Restricted
Subsidiary" is a Restricted Subsidiary of which we own all of the outstanding
capital stock directly or through our other Wholly-owned Restricted
Subsidiaries.

         Our "Unrestricted Subsidiaries" are:

         o        3M Financial Management Company;

         o        other Subsidiaries (whose primary business is in finance
                  operations) acquired or formed by us after the date of this
                  prospectus ; and

         o        any other Subsidiary if a majority of its Voting Stock is
                  owned directly or indirectly by one or more Unrestricted
                  Subsidiaries.

Our board of directors can at any time change a Subsidiary's designation from an
Unrestricted Subsidiary to a Restricted Subsidiary if:

         o        the majority of that Subsidiary's Voting Stock is not owned by
                  an Unrestricted Subsidiary, and

         o        after the change of designation, we would be in compliance
                  with the restrictions contained in the Secured Funded Debt
                  covenant described under the heading "-Restrictions on Secured
                  Funded Debt" below. (Sections 101, 1010(a))

RESTRICTIONS ON SECURED FUNDED DEBT

         The indenture limits the amount of Secured Funded Debt that we and our
Restricted Subsidiaries may incur or otherwise create (including by guarantee).
Neither we nor our


                                       10


Restricted Subsidiaries may incur or otherwise create any new Secured Funded
Debt unless immediately after this incurrence or creation:

         o        the sum of:

                  o        the aggregate principal amount of all of our
                           outstanding Secured Funded Debt and that of our
                           Restricted Subsidiaries, other than the several
                           categories of Secured Funded Debt discussed below on
                           page 13 of this prospectus, plus
                  o        the aggregate amount of our Attributable Debt and
                           that of our Restricted Subsidiaries relating to sale
                           and lease-back transactions,

         o        does not exceed 15% of our Consolidated Net Tangible Assets.

This limitation does not apply if the outstanding debt securities are secured
equally and ratably with or prior to the new Secured Funded Debt. (Sections
1008(a), 1008(c))

         "Secured Funded Debt" means Funded Debt which is secured by a mortgage,
lien or other similar encumbrance upon any of our assets or those of our
Restricted Subsidiaries. (Section 101)

         "Funded Debt" means:

         o        Indebtedness maturing, or which we may extend or renew to
                  mature, more than 12 months after the time the amount of
                  Funded Debt is computed, plus

         o        guarantees of Indebtedness of the type described in the
                  preceding bullet point, or of dividends, except guarantees in
                  connection with the sale or discount of accounts receivable,
                  trade acceptances and other paper arising in the ordinary
                  course of business, plus

         o        Funded Debt secured by a mortgage, lien or similar encumbrance
                  on our assets or those of our Restricted Subsidiaries, whether
                  or not this Funded Debt is assumed by us or one of our
                  Restricted Subsidiaries, plus

         o        in the case of a Subsidiary, all preferred stock of that
                  Subsidiary.

Funded Debt DOES NOT INCLUDE any amount relating to obligations under leases, or
guarantees of leases, whether or not those obligations would be included as
liabilities on our consolidated balance sheet. (Section 101)

         "Indebtedness" means, except as set forth in the next sentence:

         o        all items of indebtedness or liability, except capital and
                  surplus, which under accounting principles generally accepted
                  in the United States of America


                                       11


                  would be included in total liabilities on the liability side
                  of a balance sheet as of the date that indebtedness is being
                  determined;

         o        indebtedness secured by a mortgage, lien or other similar
                  encumbrance on property owned subject to that mortgage, lien
                  or other similar encumbrance, regardless of whether the
                  indebtedness secured by that mortgage, lien or other similar
                  encumbrance was assumed; and

         o        guarantees, endorsements, other than for purposes of
                  collection, and other contingent obligations relating to, or
                  to purchase or otherwise acquire, indebtedness of others,
                  unless the amount of the guarantees, endorsements or other
                  contingent obligations is included in the preceding two bullet
                  points.

Indebtedness does not include any obligations or guarantees of obligations
relating to lease rentals, even if these obligations or guarantees of
obligations would be included as liabilities on our consolidated balance sheet.
(Section 101)

         "Attributable Debt" means:

         o        the balance sheet liability amount of capital leases as
                  determined by accounting principles generally accepted in the
                  United States of America, plus

         o        the amount of future minimum operating lease payments required
                  to be disclosed by accounting principles generally accepted in
                  the United States of America, less any amounts required to be
                  paid on account of maintenance and repairs, insurance, taxes,
                  assessments, water rates and similar charges, discounted using
                  the interest rate implicit in the lease to calculate the
                  present value of operating lease payments.

The amount of Attributable Debt relating to an operating lease that can be
terminated by the lessee with the payment of a penalty will be calculated based
on the lesser of:

         o        the aggregate amount of lease payments required to be made
                  until the first date the lease can be terminated by the lessee
                  plus the amount of the penalty, or

         o        the aggregate amount of lease payments required to be made
                  during the remaining term of the lease. (Section 101)

         "Consolidated Net Tangible Assets" means the total consolidated amount
of our assets and those of our Subsidiaries, minus applicable reserves and other
properly deductible items and after excluding any investments made in
Unrestricted Subsidiaries or in corporations while they were Unrestricted
Subsidiaries but which are not Subsidiaries at the time of the calculation,
minus



                                       12


         o        all liabilities and liability items, including leases, or
                  guarantees of leases, which under accounting principles
                  generally accepted in the United States of America would be
                  included in the balance sheet, except Funded Debt, capital
                  stock and surplus, surplus reserves and deferred income taxes,
                  and

         o        goodwill, trade names, trademarks, patents, unamortized debt
                  discount and expense and other similar intangibles. (Section
                  101)

         The following categories of Secured Funded Debt will not be considered
in determining whether we are in compliance with the covenant described in the
first paragraph under the heading "Restrictions on Secured Funded Debt":

         o        Secured Funded Debt of a Restricted Subsidiary owing to us or
                  to one of our Wholly-owned Restricted Subsidiaries;

         o        Secured Funded Debt resulting from a mortgage, lien or other
                  similar encumbrance in favor of the U.S. Government or any
                  State or any instrumentality thereof to secure partial,
                  progress, advance or other payments;

         o        Secured Funded Debt resulting from a mortgage, lien or other
                  similar encumbrance on property, shares of stock or
                  Indebtedness of any company existing at the time that this
                  company becomes one of our Subsidiaries;

         o        Secured Funded Debt resulting from a mortgage, lien or other
                  similar encumbrance on property, shares of stock or
                  Indebtedness which:

                  o        exists at the time that the property, shares of stock
                           or Indebtedness is acquired by us or one of our
                           Restricted Subsidiaries, including acquisitions by
                           merger or consolidation,
                  o        secures the payment of any part of the purchase price
                           of or construction cost for the property, shares of
                           stock or Indebtedness or
                  o        secures any indebtedness incurred prior to, at the
                           time of, or within 120 days after, the acquisition of
                           the property, shares of stock or Indebtedness or the
                           completion of any construction of the property for
                           the purpose of financing all or a part of the
                           purchase price or construction cost of the property,
                           shares of stock or Indebtedness,

                  provided that, in all cases, we continue to comply with the
                  covenant relating to mergers and consolidations discussed
                  under the heading "-Consolidation, Merger or Sale" below;

         o        Secured Funded Debt secured by a mortgage, lien or other
                  similar encumbrance in connection with the issuance of revenue
                  bonds on which the


                                       13


                  interest is exempt from federal income tax pursuant to the
                  Internal Revenue Code of 1986; and

         o        any extension, renewal or refunding of:

                  o        any Secured Funded Debt permitted under the first
                           paragraph under the heading "Restrictions on Secured
                           Funded Debt,"
                  o        any Secured Funded Debt outstanding at the end of our
                           fiscal year immediately preceding the execution date
                           of the indenture of any then Restricted Subsidiary or
                  o        any Secured Funded Debt of any company outstanding at
                           the time this company became a Restricted Subsidiary,


provided that the mortgage, liens or other similar encumbrance securing such
extension, renewal or refunding is limited to the same secured property (plus
improvements thereon) that secured the Secured Funded Debt so extended, renewed
or refunded immediately prior thereto. (Section 1008(b))

RESTRICTIONS ON SALE AND LEASE-BACK TRANSACTIONS

         The indenture provides that neither we nor any of our Restricted
Subsidiaries may enter into any sale and lease-back transaction involving any
Principal Property, as defined below, more than 120 days after its acquisition
or the completion of its construction and commencement of its full operation,
unless either:

         o        we or any of our Restricted Subsidiaries could (1) create
                  Secured Funded Debt on the property equal to the Attributable
                  Debt with respect to the sale and lease-back transaction and
                  (2) still be in compliance with the restrictions on Secured
                  Funded Debt (see "-Restrictions on Secured Funded Debt"
                  above); or

         o        we apply an amount, subject to credits for some voluntary
                  retirements of debt securities and/or Funded Debt as specified
                  in the indenture, equal to the greater of (1) the fair value
                  of the property or (2) the net proceeds of the sale, within
                  120 days, to the retirement of Secured Funded Debt.

This restriction will not apply to any sale and lease-back transaction:

         o        between us and one of our Restricted Subsidiaries,

         o        between any of our Restricted Subsidiaries, or

         o        involving a lease for a period, including renewals, of three
                  years or less. (Section 1009)

"Principal Property" means any building or other facility located in the United
States, together with the land upon which it is erected and its fixtures that is
owned or leased by us or one of our Subsidiaries that is used primarily for
manufacturing or processing and has a gross book value, before deduction of any
depreciation reserves, greater than 1% of our Consolidated Net Tangible Assets,
other than:



                                       14


         o        a building or facility that is financed by obligations issued
                  by a state or local government under several sections of the
                  Internal Revenue Code of 1986; or

         o        a building or facility that in the opinion of our board of
                  directors is not of material importance to the total business
                  conducted by us and our Subsidiaries considered together.
                  (Section 101)

CONSOLIDATION, MERGER OR SALE

         The indenture generally permits a consolidation or merger between us
and another corporation. It also permits the sale or transfer by us of all or
substantially all of our property and assets and the purchase by us of all or
substantially all of the property and assets of another corporation. These
transactions are permitted if:

         o        the resulting or acquiring corporation, if other than us,
                  assumes all of our responsibilities and liabilities under the
                  indenture, including the payment of all amounts due on the
                  debt securities and performance of the covenants in the
                  indenture;

         o        immediately after the transaction, no event of default, and no
                  event that, after notice or lapse of time or both, would
                  become an event of default, exists; and

         o        except in the case of a consolidation or merger of a
                  Restricted Subsidiary with and into us, either (1) we have
                  obtained the consent of the Holders of a majority in aggregate
                  principal amount of the outstanding debt securities of each
                  series or (2) immediately after the transaction, the resulting
                  or acquiring corporation could incur additional Secured Funded
                  Debt and still be in compliance with the restrictions on
                  Secured Funded Debt (see "-Restrictions on Secured Funded
                  Debt" above). (Section 801)

         Even though the indenture contains the provisions described above, we
are not required by the indenture to comply with those provisions if we sell all
of our property and assets to another corporation if, immediately after the
sale:

         o        that corporation is one of our Wholly-owned Restricted
                  Subsidiaries; and

         o        we could incur additional Secured Funded Debt and still be in
                  compliance with the restrictions on Secured Funded Debt (see
                  "-Restrictions on Secured Funded Debt" above). (Section 803)

         If we consolidate or merge with or into any other corporation or sell
all or substantially all of our assets according to the terms and conditions of
the indenture, the resulting or acquiring corporation will be substituted for us
in the indenture with the same effect as if it had been an original party to the
indenture. As a result, this successor


                                       15


corporation may exercise our rights and powers under the indenture, in our name
or in its own name and we will be released from all our liabilities and
obligations under the indenture and under the debt securities. (Section 802)

MODIFICATION AND WAIVER

         Under the indenture, we and the trustee can modify or amend the
indenture with the consent of the Holders of a majority in aggregate principal
amount of the outstanding debt securities of each series of debt securities
affected by the modification or amendment. However, we may not, without the
consent of the Holder of each debt security affected:

         o        change the stated maturity date of any payment of principal or
                  interest;

         o        reduce payments due on the original issue discount securities;

         o        change the place of payment or currency in which any payment
                  on the debt securities is payable;

         o        limit a Holder's right to sue us for the enforcement of
                  payments due on the debt securities;

         o        reduce the percentage of outstanding debt securities required
                  to consent to a modification or amendment of the indenture;

         o        limit a Holder's right, if any, to repayment of debt
                  securities at this Holder's option; or

         o        modify any of the foregoing requirements or reduce the
                  percentage of outstanding debt securities required to waive
                  compliance with several provisions of the indenture or to
                  waive defaults under the indenture. (Section 902)

         Under the indenture, the Holders of a majority in aggregate principal
amount of the outstanding debt securities of any series of debt securities may,
on behalf of all Holders of that series:

         o        waive compliance by us with several restrictive covenants of
                  the indenture, such as corporate existence and maintenance of
                  properties; and

         o        waive any past default under the indenture, except:

                  o        a default in the payment of the principal of or any
                           premium or interest on any debt securities of that
                           series; or



                                       16


                  o        a default under any provision of the indenture which
                           itself cannot be modified or amended without the
                           consent of the Holders of each outstanding debt
                           security of that series. (Sections 1012, 513)

EVENTS OF DEFAULT

         An event of default with respect to any series of debt securities will
occur under the indenture if:

         o        we fail to pay interest on any debt security of that series
                  for 30 days after the payment is due;

         o        we fail to pay the principal of or any premium on any debt
                  security of that series when due;

         o        we fail to deposit any sinking fund payment when due on debt
                  securities of that series;

         o        we fail to perform any other covenant in the indenture that
                  applies to debt securities of that series for 90 days after we
                  have received written notice of the failure to perform in the
                  manner specified in the indenture;

         o        we default under any Indebtedness for borrowed money,
                  including other series of debt securities, or under any
                  mortgage, lien or other similar encumbrance, indenture or
                  instrument, including the indenture, which secures any
                  Indebtedness for borrowed money, and which results in
                  acceleration of the maturity of an outstanding principal
                  amount of Indebtedness greater than $20 million, unless this
                  acceleration is rescinded (or the Indebtedness is discharged)
                  within 10 days after we have received written notice of the
                  default in the manner specified in the indenture;

         o        commencement of voluntary or involuntary bankruptcy,
                  insolvency or reorganization; or

         o        any other event of default that may be specified for the debt
                  securities of that series when that series is created occurs.
                  (Section 501)

If an event of default for any series of debt securities occurs and continues,
the trustee or the Holders of at least 25% in aggregate principal amount of the
outstanding debt securities of the series may declare the entire principal of
all the debt securities of that series to be due and payable immediately. If
such a declaration occurs, the Holders of a majority of the aggregate principal
amount of the outstanding debt securities of that series can, subject to the
specific payment conditions set forth in the indenture, rescind the declaration.
(Section 502)



                                       17


         The prospectus supplement relating to each series of debt securities
which are original issue discount securities will describe the particular
provisions that relate to the acceleration of maturity of a portion of the
principal amount of that series when an event of default occurs and continues.

         An event of default for a particular series of debt securities does not
necessarily constitute an event of default for any other series of debt
securities issued under the indenture. The indenture requires us to file a
certificate with the trustee each year that states the nature of the default if
any default exists under the terms of the indenture. (Section 1011) The trustee
may withhold notice to the Holders of debt securities of any default, except
defaults in the payment of principal, premium, interest or any sinking fund
installment, if it considers the withholding of notice to be in the best
interests of the Holders. (Section 602)

         Other than its duties in the case of a default, a trustee is not
obligated to exercise any of its rights or powers under the indenture at the
request, order or direction of any Holders, unless the Holders offer the trustee
reasonable indemnification. (Sections 601, 603) If reasonable indemnification is
provided, then, subject to other rights of the trustee provided in the
indenture, the Holders of a majority in principal amount of the outstanding debt
securities of any series may, with respect to the debt securities of that
series, direct the time, method and place of:

         o        conducting any proceeding for any remedy available to the
                  trustee; or

         o        exercising any trust or power conferred upon the trustee.
                  (Sections 512, 603)

         The Holder of a debt security of any series will have the right to
begin any proceeding with respect to the indenture or for any remedy only if:

         o        the Holder has previously given the trustee written notice of
                  a continuing event of default with respect to that series;

         o        the Holders of at least 25% in aggregate principal amount of
                  the outstanding debt securities of that series have made a
                  written request of, and offered reasonable indemnification to,
                  the trustee to begin the proceeding;

         o        the trustee has not started the proceeding within 60 days
                  after receiving the request; and

         o        the trustee has not received directions inconsistent with the
                  request from the Holders of a majority in aggregate principal
                  amount of the outstanding debt securities of that series
                  during those 60 days. (Section 507)



                                       18


However, the Holder of any debt security will have an absolute right to receive
payment of principal of and any premium and interest on the debt security when
due and to institute suit to enforce this payment. (Section 508)

DEFEASANCE

         DEFEASANCE AND DISCHARGE. At the time that we establish a series of
debt securities under the indenture, we can provide that the debt securities of
that series are subject to the defeasance and discharge provisions of the
indenture. If we so provide, we will be discharged from our obligations on the
debt securities of that series if we deposit with the trustee, in trust,
sufficient money or Government Obligations, as defined below, to pay the
principal, interest, any premium and any other sums due on the debt securities
of that series, such as sinking fund payments, on the dates these payments are
due under the indenture and the terms of the debt securities. (Section 403) As
used above, "Government Obligations" mean:

         o        securities of the same government which issued the currency in
                  which the series of debt securities are denominated and/or in
                  which interest is payable; or

         o        securities of government agencies backed by the full faith and
                  credit of the government. (Section 101)

         In the event that we deposit funds in trust and discharge our
obligations under a series of debt securities as described above, then:

         o        the indenture will no longer apply to the debt securities of
                  that series, except for the obligations to compensate,
                  reimburse and indemnify the trustee, to register the transfer
                  and exchange of debt securities, to replace lost, stolen or
                  mutilated debt securities and to maintain paying agencies and
                  the trust funds; and

         o        Holders of debt securities of that series can only look to the
                  trust fund for payment of principal, any premium and interest
                  on the debt securities of that series. (Section 403)

         Under federal income tax law, that deposit and discharge may be treated
as an exchange of the related debt securities for an interest in the trust
mentioned above. Each holder might be required to recognize gain or loss equal
to the difference between:

         o        the holder's cost or other tax basis for the debt securities,
                  and

         o        the value of the holder's interest in the trust.



                                       19


Holders might be required to include in income a share of the income, gain or
loss of the trust, including gain or loss recognized in connection with any
substitution of collateral, as described in this section under the heading
"-Substitution of Collateral" below. You are urged to consult your own tax
advisers as to the specific consequences of such a deposit and discharge,
including the applicability and effect of tax laws other than federal income tax
law.

         DEFEASANCE OF COVENANTS AND EVENTS OF DEFAULT. At the time that we
establish a series of debt securities under the indenture, we can provide that
the debt securities of that series are subject to the covenant defeasance
provisions of the indenture. If we so provide and we make the deposit described
in this section under the heading "-Defeasance and Discharge" above:

         o        we will not have to comply with the following restrictive
                  covenants contained in the indenture: Consolidation, Merger or
                  Sale or Lease of Property as Entirety (Sections 801, 803,
                  804); Restrictions on Secured Debt (Section 1008); Maintenance
                  of Properties (Section 1005); Payment of Taxes and Other
                  Claims (Section 1007); Restrictions on Sale and Lease-Back
                  Transactions (Section 1009); Classification of Restricted and
                  Unrestricted Subsidiaries (Section 1010); and any other
                  covenant we designate when we establish the series of debt
                  securities; and

         o        we will not have to treat the events described in the fourth
                  bullet point under the heading "-Events of Default" as they
                  relate to the covenants listed above that have been defeased
                  and no longer are in effect and the events described in the
                  fifth, sixth and seventh bullet points under the heading
                  "-Events of Default" as events of default under the indenture
                  in connection with that series.

In the event of a defeasance, our obligations under the indenture and the debt
securities, other than with respect to the covenants and the events of default
specifically referred to above, will remain in effect. (Section 1501)

         If we exercise our option not to comply with the covenants listed above
and the debt securities of that series become immediately due and payable
because an event of default has occurred, other than as a result of an event of
default specifically referred to above, the amount of money and/or Government
Obligations on deposit with the trustee will be sufficient to pay the principal,
interest, any premium and any other sums, due on the debt securities of that
series, such as sinking fund payments, on the date the payments are due under
the indenture and the terms of the debt securities, but may not be sufficient to
pay amounts due at the time of acceleration. However, we would remain liable for
the balance of the payments. (Section 1501).

         SUBSTITUTION OF COLLATERAL. At the time that we establish a series of
debt securities under the indenture, we can provide for our ability to, at any
time, withdraw any money or Government Obligations deposited pursuant to the
defeasance provisions described above if we simultaneously substitute other
money and/or Government Obligations which would satisfy our payment obligations
on the debt securities of that series pursuant to the defeasance provisions
applicable to those debt securities. (Section 402)



                                       20


                              PLAN OF DISTRIBUTION

         We may sell the debt securities in four ways:

         o        through underwriters;

         o        through dealers;

         o        through agents; and

         o        directly to purchasers.

         The distribution of the debt securities offered under this prospectus
may occur from time to time in one or more transactions at a fixed price or
prices, which may be changed, at market prices prevailing at the time of sale,
at prices related to the prevailing market prices or at negotiated prices.

         If the applicable prospectus supplement indicates, we will authorize
dealers or our agents to solicit offers by institutions to purchase debt
securities from us pursuant to contracts that provide for payment and delivery
on a future date. We must approve all these institutions, but they may include,
among others:

         o        commercial and savings banks;

         o        insurance companies;

         o        pension funds;

         o        investment companies; and

         o        educational and charitable institutions.

The institutional purchaser's obligations under the contract are only subject to
the condition that the purchase of the debt securities at the time of delivery
is allowed by the laws that govern the purchaser. The dealers and our agents
will not be responsible for the validity or performance of the contracts.

         If we use underwriters in an offering of securities using this
prospectus, we will execute an underwriting agreement with one or more
underwriters. The names of those underwriters and the terms of the transaction
will be set forth in the applicable prospectus supplement. The underwriting
agreement will provide that the obligations of the underwriters with respect to
a sale of the offered securities are subject to specified conditions precedent
and that the underwriters will be obligated to purchase all of the offered
securities if any are purchased. In connection with the sale of debt securities,
underwriters may receive compensation from us or from purchasers of debt
securities for whom they may act as agents in the form of discounts, concessions
or commissions. Underwriters may sell debt securities to or through dealers, and



                                       21


these dealers may receive compensation in the form of discounts, concessions, or
commissions from the underwriters and/or commissions from the purchasers for
whom they may act as agents.

         If we use a dealer in an offering of securities using this prospectus,
we will sell the offered securities to the dealer as principal. The dealer may
then resell those securities to the public or other deals at a fixed price or
varying prices to be determined at the time of resale. If we designate an agent
or agents in an offering of securities using this prospectus, unless otherwise
indicated in a prospectus supplement, that agent will be acting on a best
efforts basis for the period of its appointment. Underwriters, dealers and
agents that participate in the distribution of debt securities offered under
this prospectus may be deemed to be underwriters as defined in the Securities
Act. Any underwriters or agents will be identified and their compensation,
including underwriting discount, will be described in the applicable prospectus
supplement. The applicable prospectus supplement will also describe the other
terms of the offering, including any discounts or concessions allowed or
reallowed or paid to dealers and any securities exchanges on which the debt
securities may be listed.

         Debt securities may also be offered and sold in connection with a
remarketing upon their purchase, in accordance with a redemption pursuant to
their terms, or otherwise by one or more remarketing firms acting as principals
for their own accounts or as agents for us. Any remarketing firm will be
identified and the terms of its agreements, if any, with us and its compensation
will be described in the applicable prospectus supplement. Remarketing firms may
be deemed underwriters in connection with the debt securities remarketed by
them.

         We may have agreements with the underwriters, dealers, remarketing
firms and agents to indemnify them against some liabilities, including
liabilities under the Securities Act, or to contribute with respect to payments
which the underwriters, dealers or agents may be required to make as a result of
those liabilities.

         We may also use this prospectus to directly solicit offers to purchase
securities. Except as set forth in the applicable prospectus supplement, none of
our directors, officers or employees, nor those of our subsidiaries, will
solicit or receive a commission in connection with those direct sales. Those
persons may respond to inquiries by potential purchasers and perform ministerial
and clerical work in connection with direct sales.

         When we issue the debt securities offered by this prospectus, they will
be new securities without an established trading market. If we sell a debt
security offered by this prospectus to an underwriter for public offering and
sale, the underwriter may make a market for that debt security, but the
underwriter will not be obligated to do so and could discontinue any market
making without notice at any time. Therefore, we cannot give any assurances to
you concerning the liquidity of any debt security offered by this prospectus.

         Underwriters and agents and their affiliates may be customers of,
engage in transactions with, or perform services for us or our subsidiaries in
the ordinary course of their businesses.


                                 LEGAL OPINIONS

         Gregg M. Larson, who is our Assistant General Counsel, or another one
of our lawyers, will issue an opinion about the validity of the debt securities
offered in this prospectus, as well as other relevant legal matters. Mr. Larson
beneficially owns, or has options to acquire, a number of shares of our common
stock, which represents less than 1% of the total outstanding common stock. Any
underwriters or dealers will be represented by their own counsel.



                                       22


                                     EXPERTS

         The audited financial statements incorporated in this prospectus by
reference to our current report on Form 8-K dated May 23, 2003 have been have
been so incorporated in reliance on the report of PricewaterhouseCoopers LLP,
independent accountants, given on the authority of that firm as experts in
auditing and accounting.

         Our consolidated financial statements included in subsequent filings
with the SEC will be incorporated by reference in this prospectus in reliance
upon reports given upon the authority of our independent accountants as experts
in auditing and accounting (to the extent consolidated financial statements
included in these subsequent filings are covered by consents executed by these
independent accountants and filed with the SEC).

INDEPENDENT ACCOUNTANTS

         With respect to the unaudited interim financial information of 3M
Company for the six-month periods ended June 30, 2003 and 2002 incorporated by
reference in this prospectus, PricewaterhouseCoopers LLP have reported that they
have applied limited procedures in accordance with professional standards for a
review of such information. However, their separate report dated July 21, 2003
and incorporated by reference herein, states that they did not audit and they do
not express an opinion on that unaudited interim financial information.
Accordingly, the degree of reliance on their report on such information should
be restricted in light of the limited nature of the review procedures applied.
PricewaterhouseCoopers LLP is not subject to the liability provisions of Section
11 of the Securities Act of 1933 for their report on the unaudited interim
financial information because that report is not a "report" or a "part" of the
registration statement prepared or certified by PricewaterhouseCoopers LLP
within the meaning of Sections 7 and 11 of the Act.

         WE HAVE NOT AUTHORIZED ANY PERSON TO MAKE A STATEMENT THAT DIFFERS FROM
WHAT IS IN THIS PROSPECTUS. IF ANY PERSON DOES MAKE A STATEMENT THAT DIFFERS
FROM WHAT IS IN THIS PROSPECTUS, YOU SHOULD NOT RELY ON IT. THIS PROSPECTUS IS
NOT AN OFFER TO SELL, NOR IS IT SEEKING AN OFFER TO BY, THESE SECURITIES IN ANY
STATE IN WHICH THE OFFER OR SALE IS NOT PERMITTED. THE INFORMATION IN THIS
PROSPECTUS IS COMPLETE AND ACCURATE AS OF ITS DATE. BUT THE INFORMATION MAY
CHANGE AFTER THAT DATE.













                                       23


                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.

         The following table sets forth the estimated expenses in connection
with the offering described in this Registration Statement.

         Securities and Exchange Commission registration fee...... $  121,350*
         Legal fees and expenses..................................     10,000
         Printing.................................................     25,000
         Auditors' fees and expenses..............................    150,000
         Blue Sky fees and expenses...............................      5,000
         Trustee and Authenticating Agent fees....................     30,000
         Rating agency fees.......................................    765,000
         Miscellaneous expenses...................................     10,000
                                                                   ----------
                 TOTAL............................................ $1,116,350

----------
*        Pursuant to Rule 457(p) under the Securities Act, the amount of the
         registration fee payable hereunder has been entirely offset by $130,416
         of filing fees paid in respect of $494,000,000 of unsold securities
         previously registered under the Registration Statement on Form S-3 (No.
         333-48922) of 3M Company filed with the Securities and Exchange
         Commission on October 30, 2000. The amount of the filing fee for
         securities to be registered hereunder pursuant to such offset has been
         recalculated based upon the current fee rate of $80.90 per million.
         Therefore, no filing fee relating to securities being registered
         hereunder is being paid herewith.


Item 15. Indemnification of Directors and Officers.

         Our Restated Certificate of Incorporation eliminates the liability of
directors to the fullest extent permitted by the General Corporation Law of the
State of Delaware, which currently permits a corporation to eliminate the
liability of a director for monetary damages for breach of the duty of care,
subject to appropriate stockholder approval. In addition, our Bylaws contain
provisions entitling directors, officers, and employees to indemnification to
the fullest extent permitted by current Delaware law.

Item 16. Exhibits.

         1.1      Form of Underwriting Agreement (incorporated by reference to
                  Exhibit 1.1 to Registrant's Registration Statement on Form
                  S-3, Registration No. 333-48922, filed October 30, 2000)
         1.2      Form of Distribution Agreement (incorporated by reference to
                  Exhibit 1.2 to Registrant's Registration Statement on Form
                  S-3, Registration No. 333-48922, filed October 30, 2000)
         4.1      Indenture relating to our senior debt securities dated as of
                  November 17, 2000 between 3M Company and Citibank, N.A., as
                  trustee (incorporated by reference to Registrant's Current
                  Report on Form 8-K, filed December 7, 2000)
         4.2      Forms of Medium-Term Notes (incorporated by reference to
                  Exhibit 4.2 to Registrant's Registration Statement on Form
                  S-3, Registration No. 333-48922, filed October 30, 2000)
         4.3      Form of Note (incorporated by reference to Exhibit 4.3 to
                  Registrant's Registration Statement on Form S-3, Registration
                  No. 333-48922, filed October 30, 2000)
         5        Opinion of Gregg M. Larson, Assistant General Counsel of 3M as
                  to the legality of the securities being registered and consent
                  to the use of the opinion in this Registration Statement*



                                      II-1


         12       Statement re Computation of Ratios (incorporated by reference
                  to Exhibit 12 to Registrant's Quarterly Report on Form 10-Q
                  for the quarter ended June 30, 2003).
         15       Letter from PricewaterhouseCoopers LLP re: unaudited interim
                  consolidated financial information*
         23.1     Consent of Gregg M. Larson (included in opinion filed as
                  Exhibit 5)
         23.2     Consent of PricewaterhouseCoopers LLP*
         24       Powers of Attorney*
         25       Statement of Eligibility and Qualification on Form T-1 of
                  Citibank, N.A., as trustee, of Registrant's senior debt
                  securities*

* Filed herewith.

ITEM 17. UNDERTAKINGS.

         (a)      The undersigned Registrant hereby undertakes:

                  (1) To file, during any period in which offers or sales are
         being made, a post-effective amendment to this Registration Statement:

                           (i) To include any prospectus required by Section
                  10(a)(3) of the Securities Act of 1933;

                           (ii) To reflect in the prospectus any facts or events
                  arising after the effective date of the Registration Statement
                  (or the most recent post-effective amendment thereof) which,
                  individually or in the aggregate, represent a fundamental
                  change in the information set forth in the Registration
                  Statement. Notwithstanding the foregoing, any increase or
                  decrease in volume of securities offered (if the total dollar
                  value of securities offered would not exceed that which was
                  registered) and any deviation from the low or high end of the
                  estimated maximum offering range may be reflected in the form
                  of prospectus filed with the Securities and Exchange
                  Commission pursuant to Rule 424(b) if, in the aggregate, the
                  changes in volume and price represent no more than a 20%
                  change in the maximum aggregate offering price set forth in
                  the "Calculation of Registration Fee" table in the effective
                  Registration Statement;

                           (iii) To include any material information with
                  respect to the plan of distribution not previously disclosed
                  in the Registration Statement or any material change to such
                  information in the Registration Statement;

         provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not
         apply if the information required to be included in a post-effective
         amendment by those paragraphs is contained in periodic reports filed by
         the Registrant pursuant to Section 13 or 15(d) of the Securities
         Exchange Act of 1934 that are incorporated by reference in the
         Registration Statement.



                                      II-2



                  (2) That, for the purpose of determining any liability under
         the Securities Act of 1933, each such post-effective amendment shall be
         deemed to be a new registration statement relating to the securities
         offered therein, and the offering of such securities at that time shall
         be deemed to be the initial bona fide offering thereof;

                  (3) To remove from registration by means of a post-effective
         amendment any of the securities being registered which remain unsold at
         the termination of the offering.

         (b) The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 that is incorporated by reference in the
Registration Statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

         (c) Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the Registrant pursuant to the foregoing provisions, or otherwise,
the Registrant has been advised that in the opinion of the Securities and
Exchange Commission such indemnification is against public policy as expressed
in the Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted against the Registrant by such director, officer or
controlling person in connection with the securities being registered, the
Registrant will, unless in the opinion of its counsel the matter has been
settled by controlling precedent, submit to a court of appropriate jurisdiction
the question whether such indemnification by it is against public policy as
expressed in the Act and will be governed by the final adjudication of such
issue.












                                      II-3



                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this Registration
Statement on Form S-3 to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of St. Paul, and State of Minnesota, on the 29th
day of September, 2003.

                                        3M COMPANY


                                        By  /s/ Gregg M. Larson
                                            ------------------------------------
                                            Gregg M. Larson, SECRETARY


         Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates as indicated.

       Signature                        Title                        Date
       ---------                        -----                        ----

          *                Chairman of the Board, Chief       September 29, 2003
-------------------------  Executive Officer and Director
W. James McNerney, Jr.

/s/ Patrick D. Campbell    Senior Vice President and Chief    September 29, 2003
-------------------------  Financial Officer (Principal
Patrick D. Campbell        Financial and Accounting Officer)

/s/ Ronald G. Nelson       Vice President and Controller      September 29, 2003
-------------------------
Ronald G. Nelson

          *                           Director                September 29, 2003
-------------------------
Linda G. Alvarado

          *                           Director                September 29, 2003
-------------------------
Edward A. Brennan

          *                           Director                September 29, 2003
-------------------------
Vance D. Coffman

          *                           Director                September 29, 2003
-------------------------
Edward M. Liddy

          *                           Director                September 29, 2003
-------------------------
Aulana L. Peters

          *                           Director                September 29, 2003
-------------------------
Rozanne L. Ridgway



                                      II-4



          *                           Director                September 29, 2003
-------------------------
Kevin W. Sharer

          *                           Director                September 29, 2003
-------------------------
Louis W. Sullivan

*By  /s/ Gregg M. Larson
   -----------------------
       Gregg M. Larson
       Attorney-in-fact




























                                      II-5



                                  EXHIBIT INDEX




EXHIBIT
NUMBER   DOCUMENT DESCRIPTION                                                   FORM OF FILING
------   --------------------                                                   --------------
                                                                          
1.1      Form of Underwriting Agreement (incorporated by reference to Exhibit
         1.1 to Registrant's Registration Statement on Form S-3, Registration
         No. 333-48922, filed October 30, 2000)
1.2      Form of Distribution Agreement (incorporated by reference to Exhibit
         1.2 to Registrant's Registration Statement on Form S-3, Registration
         No. 333-48922, filed October 30, 2000)
4.1      Indenture relating to our senior debt securities dated as of November
         17, 2000 between 3M Company and Citibank, N.A., as trustee
         (incorporated by reference to Registrant's Current Report on Form 8-K,
         filed December 7, 2000)
4.2      Forms of Registered Medium-Term Notes (incorporated by reference to
         Exhibit 4.2 to Registrant's Registration Statement on Form S-3,
         Registration No. 333-48922, filed October 30, 2000)
4.3      Form of Note (incorporated by reference to Exhibit 4.3 to Registrant's
         Registration Statement on Form S-3, Registration No. 333-48922, filed
         October 30, 2000)
5        Opinion of General Counsel of the Registrant...........................Electronic Transmission
12       Statement re Computations of Ratios (incorporated by reference to
         Exhibit 12 to the Registrant's Quarterly Report on Form 10-Q for the
         quarter ended June 30, 2003).
15       Letter from PricewaterhouseCoopers LLP re: unaudited interim
         consolidated financial information.....................................Electronic Transmission
23.1     Consent of General Counsel of the Registrant (included as part of
         Exhibit 5).
23.2     Consent of PricewaterhouseCoopers LLP..................................Electronic Transmission
24       Powers of Attorney.....................................................Electronic Transmission
25       Statement of Eligibility and Qualification on Form T-1 of Citibank,
         N.A., as trustee, of Registrant's senior debt securities...............Electronic Transmission





                                      II-6